package com.jingzhi.huimiao.utils;

import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;

/**
 * 解决子listView高度问题
 * 
 * @author cxk
 * 
 * 
 */
public class LvHeightUtil {
	public static void setListViewHeightBasedOnChildren(ListView listView) {
		//获取ListView对应的Adapter  
		ListAdapter listAdapter = listView.getAdapter();   
		if (listAdapter == null) {  
		// pre-condition  
		return;  
		}  
		  
		int totalHeight = 0;  
		for (int i = 0, len = listAdapter.getCount(); i < len; i++) { //listAdapter.getCount()返回数据项的数目  
		View listItem = listAdapter.getView(i, null, listView);  
		listItem.measure(0, 0); //计算子项View 的宽高  
		totalHeight += listItem.getMeasuredHeight(); //统计所有子项的总高度  
		}  
		  
		ViewGroup.LayoutParams params = listView.getLayoutParams();  
		params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));  
		//listView.getDividerHeight()获取子项间分隔符占用的高度  
		//params.height最后得到整个ListView完整显示需要的高度  
		listView.setLayoutParams(params);  
		}  
}
